package de.tuhh.simsearch.session;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class LogoutServlet.
 * The class is used to perform the logout of a user.
 * 
 * @author SimSearch 1
 * 
 * @see HttpServlet
 */
@WebServlet("/logout")
public class LogoutServlet extends HttpServlet {

  private static final long serialVersionUID = 1L;

  /**
   * @see HttpServlet#HttpServlet()
   */
  public LogoutServlet() {

    super();
  }

  /**
   * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
   */
  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    request.logout();
    request.getSession().invalidate();

    response.sendRedirect(request.getContextPath());
  }

  /**
   * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
   */
  protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    throw new ServletException("Not implemented!");
  }

}
